Design Considerations for Aural Vital Signs Using PZT Piezoelectric Ceramics Sensor Based on the Computerization Method.
Design Considerations for Aural Vital Signs Using PZT Piezoelectric Ceramics Sensor Based on the Computerization Method.
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DOI：
10.3390/s7123192
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发表时间：
2007-11-11
期刊：
影响因子：
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通讯作者：
Tantrakoon J
中科院分区：
文献类型：
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作者：
Noimanee S;Tunkasiri T;Siriwitayakorn K;Tantrakoon J
目的是为了说明如何开发系统的测量听觉生命体征，如病人的心脏和肺的声音在医院。心音测量必须在20 - 800 Hz之间操作频率响应，肺音测量必须在160 - 4，000 Hz之间操作频率响应。该方法设计的PZT压电陶瓷在同一频率响应的PZT传感器。它将听觉生命体征信号转换为电压信号。信号被适当地放大并在带通频带中被再滤波。它通过为此目的开发的模数转换电路转换为数字信号。实验结果表明，所有信号都可以通过声卡接口送入PC机.通过在屏幕上绘制图形的支持软件，可以根据每个患者的数据访问特定持续时间的信号并将其存储在计算机的存储器中。总之，每个患者的数据调用点pcg（.pcg）用于绘制图形，调用点波（.wave）用于声音收听或经由电子邮件自动发送给医生，以便稍后基于其时域和频域表示来分析解释声音以诊断心脏疾病。
The purpose was to illustrate how system developed for measurement of the aural vital signs such as patient's heart and lung sounds in the hospital. For heart sounds measurement must operate the frequency response between 20 – 800 Hz, and lung sounds measurement must operate the frequency response between 160 – 4,000 Hz. The method was designed PZT piezoelectric ceramics for both frequency response in the same PZT sensor. It converts a signal from aural vital sign form to voltage signal. The signal is suitably amplified and re-filtered in band pass frequency band. It is converted to digital signal by an analog to digital conversion circuitry developed for the purpose. The results were that all signals can fed to personal computer through the sound card port. With the supporting software for drawing of graphic on the screen, the signal for a specific duration is accessed and stored in the computer's memory in term of each patient's data. In conclusion, the data of each patient call dot pcg (.pcg) for drawing graph and dot wave (.wave) for sound listening or automatic sending via electronic mail to the physician for later analysis of interpreting the sounds on the basis of their time domain and frequency domain representation to diagnose heart disorders.
影响因子：
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作者：
OBAIDAT, MS
通讯作者：
OBAIDAT, MS
DOI：
10.3109/14639239109025301
发表时间：
1991-07-01
期刊：
MEDICAL INFORMATICS
影响因子：
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作者：
KHADRA, L;MATALGAH, M;MAWAGDEH, S
通讯作者：
MAWAGDEH, S